ID A8YWE7_LACH4 Unreviewed; 887 AA.
AC A8YWE7;
DT 15-JAN-2008, integrated into UniProtKB/TrEMBL.
DT 15-JAN-2008, sequence version 1.
DT 24-JAN-2024, entry version 111.
DE RecName: Full=DNA polymerase I {ECO:0000256|ARBA:ARBA00020311, ECO:0000256|RuleBase:RU004460};
DE EC=2.7.7.7 {ECO:0000256|ARBA:ARBA00012417, ECO:0000256|RuleBase:RU004460};
GN Name=polA {ECO:0000256|RuleBase:RU004460};
GN OrderedLocusNames=lhv_1617 {ECO:0000313|EMBL:ABX27533.1};
OS Lactobacillus helveticus (strain DPC 4571).
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Lactobacillaceae;
OC Lactobacillus.
OX NCBI_TaxID=405566 {ECO:0000313|EMBL:ABX27533.1, ECO:0000313|Proteomes:UP000000790};
RN [1] {ECO:0000313|EMBL:ABX27533.1, ECO:0000313|Proteomes:UP000000790}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DPC 4571 {ECO:0000313|EMBL:ABX27533.1,
RC ECO:0000313|Proteomes:UP000000790};
RX PubMed=17993529; DOI=10.1128/JB.01295-07;
RA Callanan M., Kaleta P., O'Callaghan J., O'Sullivan O., Jordan K.,
RA McAuliffe O., Sangrador-Vegas A., Slattery L., Fitzgerald G.F.,
RA Beresford T., Ross R.P.;
RT "Genome sequence of Lactobacillus helveticus: an organism distinguished by
RT selective gene loss and IS element expansion.";
RL J. Bacteriol. 190:727-735(2008).
CC -!- FUNCTION: In addition to polymerase activity, this DNA polymerase
CC exhibits 5'-3' exonuclease activity. {ECO:0000256|RuleBase:RU004460}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 2'-deoxyribonucleoside 5'-triphosphate + DNA(n) =
CC diphosphate + DNA(n+1); Xref=Rhea:RHEA:22508, Rhea:RHEA-COMP:17339,
CC Rhea:RHEA-COMP:17340, ChEBI:CHEBI:33019, ChEBI:CHEBI:61560,
CC ChEBI:CHEBI:173112; EC=2.7.7.7;
CC Evidence={ECO:0000256|ARBA:ARBA00024632,
CC ECO:0000256|RuleBase:RU004460};
CC -!- SUBUNIT: Single-chain monomer with multiple functions.
CC {ECO:0000256|ARBA:ARBA00011541, ECO:0000256|RuleBase:RU004460}.
CC -!- SIMILARITY: Belongs to the DNA polymerase type-A family.
CC {ECO:0000256|ARBA:ARBA00007705, ECO:0000256|RuleBase:RU004460}.
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DR EMBL; CP000517; ABX27533.1; -; Genomic_DNA.
DR RefSeq; WP_012212131.1; NC_010080.1.
DR AlphaFoldDB; A8YWE7; -.
DR KEGG; lhe:lhv_1617; -.
DR eggNOG; COG0258; Bacteria.
DR eggNOG; COG0749; Bacteria.
DR HOGENOM; CLU_004675_0_0_9; -.
DR OMA; NRPPMPD; -.
DR Proteomes; UP000000790; Chromosome.
DR GO; GO:0008408; F:3'-5' exonuclease activity; IEA:InterPro.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003887; F:DNA-directed DNA polymerase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006281; P:DNA repair; IEA:UniProtKB-UniRule.
DR GO; GO:0006261; P:DNA-templated DNA replication; IEA:UniProtKB-UniRule.
DR CDD; cd08637; DNA_pol_A_pol_I_C; 1.
DR CDD; cd06140; DNA_polA_I_Bacillus_like_exo; 1.
DR CDD; cd09898; H3TH_53EXO; 1.
DR CDD; cd09859; PIN_53EXO; 1.
DR Gene3D; 3.30.70.370; -; 1.
DR Gene3D; 1.10.150.20; 5' to 3' exonuclease, C-terminal subdomain; 2.
DR Gene3D; 3.40.50.1010; 5'-nuclease; 1.
DR Gene3D; 3.30.420.10; Ribonuclease H-like superfamily/Ribonuclease H; 1.
DR InterPro; IPR002562; 3'-5'_exonuclease_dom.
DR InterPro; IPR020046; 5-3_exonucl_a-hlix_arch_N.
DR InterPro; IPR002421; 5-3_exonuclease.
DR InterPro; IPR036279; 5-3_exonuclease_C_sf.
DR InterPro; IPR019760; DNA-dir_DNA_pol_A_CS.
DR InterPro; IPR001098; DNA-dir_DNA_pol_A_palm_dom.
DR InterPro; IPR043502; DNA/RNA_pol_sf.
DR InterPro; IPR020045; DNA_polI_H3TH.
DR InterPro; IPR018320; DNA_polymerase_1.
DR InterPro; IPR002298; DNA_polymerase_A.
DR InterPro; IPR008918; HhH2.
DR InterPro; IPR029060; PIN-like_dom_sf.
DR InterPro; IPR012337; RNaseH-like_sf.
DR InterPro; IPR036397; RNaseH_sf.
DR NCBIfam; TIGR00593; pola; 1.
DR PANTHER; PTHR10133; DNA POLYMERASE I; 1.
DR PANTHER; PTHR10133:SF27; DNA POLYMERASE NU; 1.
DR Pfam; PF01367; 5_3_exonuc; 1.
DR Pfam; PF02739; 5_3_exonuc_N; 1.
DR Pfam; PF00476; DNA_pol_A; 1.
DR PRINTS; PR00868; DNAPOLI.
DR SMART; SM00474; 35EXOc; 1.
DR SMART; SM00475; 53EXOc; 1.
DR SMART; SM00279; HhH2; 1.
DR SMART; SM00482; POLAc; 1.
DR SUPFAM; SSF47807; 5' to 3' exonuclease, C-terminal subdomain; 1.
DR SUPFAM; SSF56672; DNA/RNA polymerases; 1.
DR SUPFAM; SSF88723; PIN domain-like; 1.
DR SUPFAM; SSF53098; Ribonuclease H-like; 1.
DR PROSITE; PS00447; DNA_POLYMERASE_A; 1.
PE 3: Inferred from homology;
KW DNA damage {ECO:0000256|RuleBase:RU004460};
KW DNA repair {ECO:0000256|RuleBase:RU004460};
KW DNA replication {ECO:0000256|ARBA:ARBA00022705,
KW ECO:0000256|RuleBase:RU004460};
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|RuleBase:RU004460};
KW DNA-directed DNA polymerase {ECO:0000256|ARBA:ARBA00022932,
KW ECO:0000256|RuleBase:RU004460}; Hydrolase {ECO:0000256|ARBA:ARBA00022801};
KW Nuclease {ECO:0000256|ARBA:ARBA00022722};
KW Nucleotidyltransferase {ECO:0000256|ARBA:ARBA00022695,
KW ECO:0000256|RuleBase:RU004460};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU004460}.
FT DOMAIN 4..267
FT /note="5'-3' exonuclease"
FT /evidence="ECO:0000259|SMART:SM00475"
FT DOMAIN 302..477
FT /note="3'-5' exonuclease"
FT /evidence="ECO:0000259|SMART:SM00474"
FT DOMAIN 643..851
FT /note="DNA-directed DNA polymerase family A palm"
FT /evidence="ECO:0000259|SMART:SM00482"
SQ SEQUENCE 887 AA; 100813 MW; 9BE22A0D89DAA33F CRC64;
MADEKLLLID GNSVAFRAFY ALYRQLESFK SPDGLHTNAI YAFKNMLDVL LKDVDPTHVL
VAFDAGKVTF RTKMYGEYKG GRAKTPEELL EQMPYIQEML HDLGIKTYEL KNYEADDIIG
TFAAKGEKAG FTTTIVTGDR DLTQLASDKT TVEVTKSGVS KLEAYTPEHM KEVNGVTPSE
FIDMKALMGD NSDNYPGVEG IGPKTASNLI QEYGSVENLY DHIDEMKKSK RKERLIRDKE
KAFLAKKLAT IDRDSPVTLD IDDIKRQPVD YEKLRQFYEK MNFRKFLADL NASGAGQDST
EVEKVEYIVL NDDNVKDVKA TEADTIEFYL EMLGANYHLA PFVGFSLKIN DKIYVSRDVE
LLEEDNIKHI LEDEKIKKNV FDLKRTMVAA HRLGIHTHGL DYDMLLASYL INNENNSNDL
GEIAHLYGDY SVKTDLEVYG KGKSEHIPDD DDELFNHLAS KVNAIESLKK TLLEKLKDHE
QDALFDTIEI PTARVLARME MNGMKVEAST LIQLQNEFAV KLKKLEDKIY GQAGEKFNLN
SPKQLGHILF EKLGLPVIKK TKTGYSTSVE VLDQLKTQSP IVSKILDYRQ IAKIQSTYVK
GLLDVIQPDG RVHTRYLQTL TATGRLSSVD PNLQNIPTRT EEGKQIRKAF VPSEPDGYIF
SCDYSQVELR VLAHVSGDQN MQEAFKTGYD IHSHTAMKIF HLESPDEVTP LMRRHAKAVN
FGIVYGISDY GLSKNLGISR KRAQEFIDNY FEQYPQIKDY MNKAVQEARD KGYAETIMHR
RRYLPDIHAK KYTVRAFAER TAINSPIQGS AADIIKIAMI NMQKKLDELH LKTKMVIQVH
DELIFDVPKD ELETIKKIVP EVMQSAVKLD VPLIADSGWG HNWYDAK
//